Thunderbird Community Forum

I began using Thunderbird several weeks ago, beginning with the previous version and upgrading to the new one. From the beginning, Thunderbird hangs every couple of minutes, whether I'm navigating or composing a reply. It doesn't shut down, it just stops working, often with "Not Responding" in the title bar. It usually comes back within 5-10 seconds. It did this when I was in Troubleshoot mode.

I've seen suggestions to see what happens in Safe Mode. I hate using Safe Mode, so I'm hoping for another suggestion or test to do in regular mode before I go that route. Kami

Hello Team,

Hope you are doing well. I just installed Thunderbird email client and have imported my Yahoo Mail account into thunderbird. Further, add-ons TbSync and Provider for Exchange ActiveSync have been installed too.

However, I cannot add yahoo calendar. I have tried creating New Calendar and proceeded up to the steps - "On the Network ; paste yahoo calendar URL etc and the bottleneck seems to be yahoo credentials are not accepted. Please help.

Also is there a way to combine my hotmail, yahoo and gmail calendars into "one" Thunderbird calendar? I am not sure if calendar events from the 3 email providers are comprehensively included in my view today. Appreciate your guidance on this too!

Many Thanks, Amlesh

Hi all,

I see lots of posts about emails disappearing but none exactly fit my situation.

I find messages disappearing especially when I move them to another folder. My config is TB115.10.1 Been using TB for countless years as an excellent app. After update 115 it has turned into a real mess for me. Always been POP accounts. Gmail is the server. All mail left on the server unless I delete it. I create a new POP account every year to keep track of emails by year. Have lots of folders to place the inbox messages.

For about a week now, when I mark as read and move a message to a folder. Say Paid" or "Cars", the message is no longer visible or selectable. I have read/unread/folder size turned on under my Inbox. So I know the missing messages are there in the folder but I cannot see them or select them. Some of the folders contents have completely disappeared. This a disaster for me. Has just started happening but was working fine before this TB update. Never happened before.

I will appreciate someones kind help.

Hello! I recently got the update to Thunderbird 128 on my PopOS laptop via sudo apt update/upgrade. I don't know what the previous version was. Since the update, Thunderbird will spike my CPU to 120 - 140% (per command-line "top") if I have an interaction with it (e.g. reading and then deleting an email that was received) after the program has been sitting idle for several minutes. After a few minutes of loud fans, things calm down again so I presume Thunderbird is doing some sort of maintenance routine that completes successfully.

I do not have the global search index thing turned on. I did not change the default mailbox db idle time. I do have rather large mailboxes that are synced via SMTP, from three different providers. There are dozens of folders (not hundreds) containing thousands if messages (but not tens of thousands). Hopefully that gives an idea of scale .. I don't have a massive overload of untended email history but I do have a quantity of historical emails that the system has to deal with.

I followed the excellent directions online to obtain a profile during one of these high-cpu sessions. It is available at https://share.firefox.dev/4dAmyAz

Please let me know if there is anything further I can do to help diagnose this issue, such as generating more specific profiles. The high-cpu state is a pretty common occurrance now.

When I download Thunderbird I get "Thunderbird Setup 128.1.1esr." If I click on that it says extracting but doesnt show where its extracting to. If I right click and extract from there I get a setup file but when I click on that to setup I get a message "Sorry Thunderbird cant be installed. This version of Thunderbird requires Microsoft Windows 10 x 64 or higher.." I have Windows 10 x 64. This whole problem started when I couldnt save attachments and I read online a solution which was reinstalling Thunderbird. Any advice?

Some emails that I have been receiving lately and opening in Thunderbird just show as a single line of characters. Example --_006_SY4P282MB1578D61B23A9619DBB60F5F2C5EC9SY4P282MB1578AUSP_-- The From field is blank. The Sublect line is blank. Email show correctly in browser This is a gmail account

The folders and address lists exist in .thunderbird/5sdfwbvt.default /Mail/Local Folders

and in  .thunderbird/5sdfwbvt.default/storage/abook/mab  and abook/sqlite

How can I get thunderbird to access these resources??

Thumderbird asked if it could compact folders. Said yes. Now all that shows is the title line for all emails in inbox, but NO content displayed.

Can still see content in emails that are in other folders, seems to be only inbox that will not show content of the emails

New emails arriving will show content as well as some old old emails in inbox

Why did I have to use Google to be able to access my Thunderbird account? I don't see that as protecting my privacy. Admittedly I haven't previously updated my Thunderbird password as often as I should but I don't see why it couldn't be used to enable Thunderbird on my new computer.

This is essentially the same problem as https://support.mozilla.org/en-US/questions/1430726 . I am running 128.1.0esr, and the problem surfaced recently. I installed 128.0.1esr (replacing 115.13.0) on July 31. and the problem might have been re-introduced there. I have not researched the version numbers, so I do not know why I went from 115.13.0 to 118.0.1esr.

Here is the problem. I want to see all of the mails with a certain string in the sender field. After I have typed the first character in the filter field, Thunderbird goes into a "Not Responding" state, and I see a spinning blue circle. After I have entered the entire string, it takes a while before TB becomes responsive. When TB becomes responsive, I can delete all of the selected messages (in less than a second). But when I then remove or change the string, TB takes a lot of time before becoming responsive again. Wayne Mery posted at the end of that other archived thread "115.9.0 has a patch related to quick filters which may help." Has that patch somehow been regressed? Thanks.

Hi

I hope someone can provide me with some advice.

I have used Thunderbird since its birth and have always found it reliable. However the latest release seems to be having problems with moving emails.

Example 1 - I moved an email from my Inbox to a special folder. The email was present in full before the move. Only the header appeared to be copied. I could not undo this and attempting repair on both inbox and other folder failed, as did exit and re-start. The result is that this email is lost.

Example 2 - I went to do a bulk move from the search window (something I have done hundreds of times before without incident). As usual CTRL A, Move to <new folder>, emails greyed out but nothing happens. Exit, return, repeat - same result.

At other times, both these type of operations work fine. But it is unpredictable.

Relatedly, I observe that on start-up the Inbox initially shows as <no messages> and takes several seconds to populate. Also, my auto-filing Rules are also working inconsistently.

These two points, and the two examples, are new issues for me since 128 release. I am using Windows 10 Pro on an HP Envy 17" laptop.

Any suggestions welcome as I am now concerned about losing emails!

Best wishes Roland

When my Thunderbird was hanging, I decided to reload the program. All my previous emails and addresses were gone. When I tried to input an earlier profile, I received an error message. The error console did not explain the problem. My lost emails are somewhere resident on my hard drive, but I don't know how to get to them.

Thunderbird v.128.1.1esr (64-bit) (up to date) Windows 11 Pro v.23H2 OS Build 22631.4037 No VPN

Two days ago my Thunderbird installation stopped being able to access my Gmail account. Everything was working fine up until then. Now I get a notice to allow Thunderbird to access Gmail, I click 'Allow' and it fails to authenticate. Collecting mail from my other non-Gmail accounts is unaffected and works fine.

I see these permission approvals are triggering email alerts to my backup Gmail account for this one re: "A new sign-in on Windows" and I am consistently clicking "Yes it was me'" with no effect. I have not done anything to block this activity, and I have no problem logging into this Gmail account from any web browser using the same credentials I am using with Thunderbird ... and which were already in place when this started happening 2 days ago.

I checked in Thunderbird Settings > Privacy & Security and cookies are being accepted, and I can see the cookies in the list.

I have tried deleting the saved (unchanged) password, removing the cookies, and even removing the account and setting it up again, with no joy.

When re-setting up the account this morning, the account creation does not complete and I am receiving this notice: "Unable to log in at server. Probably wrong configuration, username or password." (see attached screenshot)

The username and password were (a) unchanged from 3 days ago when this worked fine and (2) confirmed as I can log in to that Gmail account just fine with any web browser using the same credentials, even with incognito browser.

Thinking maybe the Thunderbird auto-detected configuration is incorrect, I changed the IMAP Connection Secutiry setting for the account from SSL/TLS to STARTTLS where it took about 2 minutes on the Checking Password stage and ultimately failed with the same error message.

TIA for any assistance with being able to use Thunderbird once again to work with this Gmail account.

Hi, I've been using CalDAV on my Synology server to synch between my desktop Thunderbird instance and handheld without problems. I recently added my laptop as a third platform which synched fine. However now I am working offline (I have an Internet connection but no remote access to Synology), Thunderbird repeatedly comes up with the message:

An error occurred when writing to the calendar My Calendar! Please see below for more information. Error code: MODIFICATION_FAILED.

The error message is maximally annoying as it steals focus from all Thunderbird windows then hides in the background, making it look like the app has disappeared entirely.

I have Offline Support checked in the calendar properties. Platform: Windows 11. I've tried deleting calender_date\cache.sqlte as suggested elsewhere but that makes all my appointment disappear.

I've tried restarting and reinstalling Thunderbird but no change in this blockage since Tuesday. I am running Windows 11 Pro and Thunderbird 128.1.0esr (64-bit). Downloading chunks of email from Comcast and trying to import them doesn't work. Please advise as I am stuck. I will check your answers on Comcast server as I can not read them directly.

I had a school gmail account in thunderbird that I no longer have access to because I graduated. Once I lost access to the account, thunderbird would repeatedly ask me to sign in, so I removed the account through account settings -> account actions -> remove account. However thunderbird still repeatedly requests me to sign into the removed account. The account is no longer visible in the account settings sidebar, and I've also removed the account from my outgoing server settings, and from my saved passwords, but it still asks to be to signed in. This is preventing thunderbird from automatically updating emails, since whenever it checks for new messages it gets stuck on the removed account.

i am currently on thunder 115.14.0 64bit ( supernova ) and there seems to be a big gap from my current version to the 128 version ( maybe this is normal ) , just curious, anyway once i select update to 128 in thunderbird is this going to change my layout, settings, column views buttons layout or anything like that. or will everything pretty much remain how i have set it up ? thanks.